Composition floors



40 1 'Such'other objects and advant A5 --of'wl1ich are,--of course Patented duly 22, llQZlQ mam l FRANTS DJRUP, OF CHICAGO, ILLINOES.

COMPOSITION FLUORS.

N Drawing.

T 0 all whom it may concern:

Be it known that I, FRANTS DJoRnr, a preferably as follows:

citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Composition Floors, of which the following is a specification. 7 This invention relates to composition floors, and particularlyv pertains to such 10 floors as contain a product popularly known as magnesite, and from which such floors obtain their name. I

' Itis the primary object of this invention to provide a composition flooring material which may consist of magnesite and other constituents combined in proper proportions to afford an improved homogeneous mass of proper consistency to permit the same to .be laid in semi-plastic state to form floor; which when set and finished possesses'a high degree of elasticityland dam. bility;-wh1ch is fire-resistent and will not buckle or crack under changes in temperature; and yet afford a composition floor- 2 which will readily expand and contract evenly under such changes in temperature I The dry lngredlents as described are thor- 80 as mayiprevail." I

It'is further an'object' of this inventionto provide a composition flooringmaterial which, whileprefe'rably employing magnesite as one of its principal constituents, may.

fcon'tain any-other constituent in the'place 'ofmagnesite which possesses the samequali ties; and it is further an object to' provide, a

85 composition employing constituents which readily combine :with ma nesite to produce the desiredxre sult, name y, a composition fiooringma'terial possessing elasticity and a high degree of durability; q I ages asimay [appear or be pointed out later, together with those already pointed out, are attained in the preferred combination'ofconstituents del scribedin' detail hereinafter; the proportions ,variable to suit dif- "ferentjconditions,

' Referring nowlto the composition and its constituents forming the subject matter of -Application filed December 23', 1921. Serial No; 524,493.

bined in suitable proportions, which are Parts. Calcined magnesite powder Kieselguhr 30 Silica 5 Flint powder 5 50 Lime proof coloring substancesuflicient quantity to secure the desired coloring effect.

The foregoing constituents, as pointed out, complete the dry portion of the composition, the calcined magnesite being usually composed of magnesium oxide, carbon dioxide, and calcium oxide, and easil ob-. tainable on the open market. Kiese guhr is a mineral readily obtainable in this. country and is composed of flint oxide, and is indestructible and will undergo all temperatures. Its use is preferable to that of asbestos because asbestos cannot withstand such a high temperature, which runs 3400 and 3600 degrees F. Thus the temperature resistant property of a floor is materially increased by the use of kieselguhr.

oughly mixed either by grinding or in any other suitable manner to form a homogeneous mass and until at least 60 per cent of the mixture will pass a standard mesh sieve.

The dry-materials having thus been mixed are reduced to a plastic state by adding magnesium chloride, preferably 60 parts and having a hydrometer reading 'of 20.22 Baum, The magnesium chloride, of course,

, is readily obtainable on the open market, and,

' "is addedfto the mixed dry materials until the proper plastic consistency is attained, whereuponthecomposition is complete and ready for. use. v

- While the particular method employed in laying the composition to form a floor may be any' approved method,'t he installation is usually carried out in the following manner:

this I inventiomf the composition preferably 1 50 consists of m3'g esite,kieselguhr, silica flint -p ow'der, and a lime proof coloring which forms the.-dry part of the composition flooring material, these elements being com- A concrete fill is provided and must be thor- 10o o ighly set and .clean of foreign particles before applying the composition floor. To secure a good bond between the composition Y and the concrete, and where the floor is to be greater in thickness than one-quarter inch, acoating of this composition of liquid consistency is applied a suitable period of time before the composition flooring is applied. Where the floor is to be not more than one-quarter of an inch in thickness, the same may consist entirely of the plastic cone position as described. Certain building rules require two layers and, of course, this composition may be installed in accordance with existing: rules governing such installations. These different methods of installa tion have been carefully considered by those familiar with building; are well-known to those skilled in the art, and forming no indispensable part of the present invention are not described here.

While this invention has been described as composed of a plurality of constituents in certain proportions, it is obvious that minor asoaees changes in proportions and manner c0mbining same may be made Within the purscope of the FRANTS DJURUP. Witnesses:

DANIEL A. BRENNAN, FORREST B. SMITH. 

